Restart KDE5 plasma without logging out or restarting the desktop environment (because of KDE5 Bugs? as great as KDE5 has been improved recently to KDE5 it still has a lot of bugs like if Krunner crashed and wont restart, want to restart KDE5 without logging out? or if you just need to restart for whatever reasons without logging or rebooting)

Either Runs these commands in console:

$ killall plasmashell & kstart plasmashell &

or a better way is to make a script (for example plasma_script) and make it executable and run it when you need to, with the content below: